A composite railway sleeper (1; 50; 100) comprising an outer coating shell (2; 51; 101) made of composite plastic material and a shaped structural core (3; 52; 102), made of a material comprising at least concrete contained within said outer coating shell (2; 51; 510; 101), wherein said outer coatin
A composite railway sleeper (1; 50; 100) comprising an outer coating shell (2; 51; 101) made of composite plastic material and a shaped structural core (3; 52; 102), made of a material comprising at least concrete contained within said outer coating shell (2; 51; 510; 101), wherein said outer coating shell (2; 51; 510; 101) presents in the upper outer face (2a; 51a; 101a) two distinct and opposite groups of grooves (4; 53) suitable to receive the angular guide plates (G) belonging to pre-assembled elastic type fastening systems (64) for the connection of two respective rails (R) with said railway sleeper (1; 50; 100).
대표청구항▼
1. A composite railway sleeper comprising: an outer coating shell made of composite plastic material; anda shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell,characterized in that said outer coating shell compris
1. A composite railway sleeper comprising: an outer coating shell made of composite plastic material; anda shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell,characterized in that said outer coating shell comprises in an upper outer face two distinct and opposite groups of grooves suitable to receive angular guide plates belonging to pre-assembled elastic rail fastening systems for connection of two respective rails with said railway sleeper and further in that said material of said shaped structural core comprises steel in a shape of outlined stiffening engagements embedded in said concrete, wherein the material of said shaped structural core further comprises a mixture of plastic material and recycled rubber in a pair of composite blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete, characterized in that said outlined stiffening engagements are welded to a folded containment and support sheet, further characterized in that each of said outlined stiffening engagements comprises at least one side edge with a guide tooth that fits into a channel of vertical engagement made in at least one opposite side of each said composite blocks. 2. The composite railway sleeper according to claim 1 characterized in that said distinct and opposite groups of grooves are symmetrically arranged in relationship to each other with respect to a transverse symmetry axis (Y) of said outer coating shell. 3. The composite railway sleeper according to claim 1 characterized in that said composite plastic material comprises recycled plastic and/or recycled rubber. 4. The composite railway sleeper according to claim 3 characterized in that said recycled rubber includes fragments, frayed fibres, granules or combinations thereof resulting from shredded end of life tires (EoLT) of vehicles. 5. The composite railway sleeper according to claim 1 characterized in that said material of said shaped structural core comprises a mixture of plastic material and recycled rubber, in a shape of a pair of composite shaped blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete. 6. The composite railway sleeper according to claim 1 characterized in that it comprises a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell. 7. The composite railway sleeper according to claim 1, further comprising a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell, characterized in that said metallic reinforcement plate presents a plurality of through slots suitable to allow passage of said concrete when it is injected into said folded containment and support sheet. 8. The composite railway sleeper according to claim 1 wherein said outer coating shell further comprises side faces with an “S” shaped curvature and a lower face of said outer coating shell comprising a net design suitable to increase and improve interaction between a ballast foundation bed and said railway sleeper whereby lateral displacement of a railway track is reduced during passage of a train. 9. The composite railway sleeper according to claim 1, characterized in that said outer coating shell is an assembled body composed of an upper part and a lower part joined together by means of a coupling system and a high-strength glue. 10. The composite railway sleeper according to claim 1, characterized in that said outer coating shell is a single body suitable to ensure uniform coverage without joints. 11. The composite railway sleeper according to claim 9 characterized in that it further comprises a piezoelectric system coupled with said shaped structural core and in direct contact with an inner surface immediately below said rails of said outer coating shell, and suitably actuated by a pressure exerted on said composite railway sleeper by passage of a train on a track in order to produce electric energy and transfer it through a cable wiring to an external accumulator and making it available to an electrical network. 12. The composite railway sleeper according to claim 5, wherein said outer coating shell is an assembled body comprising an upper part and a lower part joined together by means of a coupling system and a high-strength glue, and further comprising a piezoelectric system coupled with said shaped structural core and in direct contact with an inner surface immediately below said rails of said outer coating shell and suitably actuated by a pressure exerted on said composite railway sleeper by passage of a train on a track in order to produce electric energy and transfer it through a cable wiring to an external accumulator and making it available to an electrical network, characterized in that said piezoelectric system comprises an electric contact housed in a cavity made at least in an upper face of at least one of said composite shaped Hocks. 13. The composite railway sleeper according to claim 1 further comprising a satellite data transmission system coupled with said outer coating shell actuated by pressure exerted on said composite railway sleeper by passage of a train on a track whereby at least data regarding train speed, train length, number of wagons, track conditions, distance between two consecutive trains and distance between two opposite trains is transmitted. 14. The composite railway sleeper according to claim 13 characterized in that said satellite data transmission system is integrated in an under-rail plate housed in a room in an upper surface of said outer coating shell and connected with an external signal repeater through a wiring cable. 15. Railway track comprising: a pair of rails parallel and spaced apart each other by a prefixed gauge;a plurality of composite railway sleepers, arranged at least predominantly between said rails one consecutive and spaced apart each other in such a way as to define linear directions parallel each other and in a direction defined by said rails and suitable to be placed superiorly close a ballast foundation bed, each of said composite railway sleepers including: an outer coating shell made of composite plastic material;a shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell;pre-assembled elastic rail fastening systems which connect each of said rails with said railway sleeper,characterized in that said outer coating shell further comprises in an upper outer face two distinct and opposite groups of grooves which receive angular guide plates of said pre-assembled elastic rail fastening systems and further in that said material of said shaped structural core comprises steel in a shape of outlined stiffening engagements embedded in said concrete wherein the material of said shaped structural core further comprises a mixture of plastic material and recycled rubber in a pair of composite blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete, characterized in that said outlined stiffening engagements are welded to a folded containment and support sheet, further characterized in that each of said outlined stiffening engagements comprises at least one side edge with a guide tooth that fits into a channel of vertical engagement made in at least one opposite side of each said composite blocks. 16. A composite railway sleeper comprising: an outer coating shell made of composite plastic material; anda shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell,characterized in that said outer coating shell comprises in an upper outer face two distinct and opposite groups of grooves suitable to receive angular guide plates belonging to pre-assembled elastic rail fastening systems for connection of two respective rails with said railway sleeper and further in that said material of said shaped structural core comprises steel in a shape of outlined stiffening engagements embedded in said concrete, wherein the material of said shaped structural core further comprises a mixture of plastic material and recycled rubber in a pair of composite blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete, characterized in that said outlined stiffening engagements are welded to a folded containment and support sheet, further comprising a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell, characterized in that said metallic reinforcement plate presents a plurality of through slots suitable to allow passage of said concrete when it is injected into said folded containment and support sheet. 17. Railway track comprising: a pair of rails parallel and spaced apart each other by a prefixed gauge;a plurality of composite railway sleepers, arranged at least predominantly between said rails one consecutive and spaced apart each other in such a way as to define linear directions parallel each other and in a direction defined by said rails and suitable to be placed superiorly close a ballast foundation bed, each of said composite railway sleepers including: an outer coating shell made of composite plastic material;a shaped structural core, made of a material comprising at least a prestressed reinforced concrete contained within said outer coating shell;pre-assembled elastic rail fastening systems which connect each of said rails with said railway sleeper,characterized in that said outer coating shell further comprises in an upper outer face two distinct and opposite groups of grooves which receive angular guide plates of said pre-assembled elastic rail fastening systems and further in that said material of said shaped structural core comprises steel in a shape of outlined stiffening engagements embedded in said concrete, characterized in that said outlined stiffening engagements are welded to a folded containment and support sheet;further comprising a metallic reinforcement plate stably coupled above said shaped structural core and contained inside said outer coating shell, characterized in that said metallic reinforcement plate presents a plurality of through slots suitable to allow passage of said concrete when it is injected into said folded containment and support sheet. 18. Railway track of claim 17 wherein the material of said shaped structural core further comprises a mixture of plastic material and recycled rubber in a pair of composite blocks embedded in said concrete and connected to each other through one or more steel bars embedded in said concrete, characterized in that each of said outlined stiffening engagements comprises at least one side edge with a guide tooth that fits into a channel of vertical engagement made in at least one opposite side of each said composite blocks.
Jeffrey D. Muhs ; Matthew B. Scudiere ; John K. Jordan, Method and appartus for converting static in-ground vehicle scales into weigh-in-motion systems.
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